A334110 - cp's OEIS frontend

A334110 The squares of squarefree numbers (A062503), ordered lexicographically according to their prime factors. a(n) = Product_{k in I} prime(k+1)^2, where I are the indices of nonzero binary digits in n = Sum_{k in I} 2^k.

n	a(n)
0	1
1	4
2	9
3	36
4	25
5	100
6	225
7	900
8	49
9	196
10	441
11	1764
12	1225
13	4900
14	11025
15	44100
16	121
17	484
18	1089
19	4356
20	3025
21	12100
22	27225
23	108900
24	5929
25	23716
26	53361
27	213444
28	148225
29	592900
30	1334025
31	5336100
32	169
33	676
34	1521
35	6084
36	4225
37	16900
38	38025
39	152100
40	8281
41	33124
42	74529
43	298116
44	207025
45	828100
46	1863225
47	7452900
48	20449
49	81796
50	184041

[1, 4, 9, 36, 25, 100, 225, 900, 49, 196, 441, 1764, 1225, 4900, 11025, 44100, 121, 484, 1089, 4356, 3025, 12100, 27225, 108900, 5929, 23716, 53361, 213444, 148225, 592900, 1334025, 5336100, 169, 676, 1521, 6084, 4225, 16900, 38025, 152100, 8281, 33124, 74529, 298116, 207025, 828100, 1863225, 7452900, 20449, 81796, 184041]

cp's OEIS Frontend

A334110 The squares of squarefree numbers (A062503), ordered lexicographically according to their prime factors. a(n) = Product_{k in I} prime(k+1)^2, where I are the indices of nonzero binary digits in n = Sum_{k in I} 2^k.

Table of values

List of values